Carbon nanotubes (CNTs) reinforced aluminum composites with unique intragranular dispersion were obtained using ultra short carbon nanotubes, and nanoscale carbon nanotubes were uniformly distributed within ultrafine aluminum grains. Compared with typical CNT/Al composite materials with intergranular carbon nanotube dispersion, this intragranular carbon nanotube/aluminum composite material has str...
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1. Antibacterial agents and their classification Antibiotics refer to drugs that can inhibit bacterial growth, damage their living environment, and effectively and continuously exert their effects. Antibacterial agents are divided into two categories: organic antibacterial agents and inorganic antibacterial agents. Among them, organic antibacterial agents include natural and synthetic types, while...
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Nickel based high-temperature alloy powder are a type of metal material specially designed to withstand high temperature, high pressure, and corrosive environments, and are very suitable for use under extreme conditions. They are mainly composed of nickel, chromium, and iron, and elements such as molybdenum, cobalt, niobium, titanium, and aluminum are often added to enhance their performance. Clas...
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Copper powder and copper alloys powder have excellent physical and chemical properties, such as high conductivity, thermal conductivity, and corrosion resistance, and are widely used in the power industry, thermal management systems, nuclear power plants, and aerospace industry. High strength, wear-resistant, and corrosion-resistant copper alloys are used for automotive parts and daily necessities...
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The specific surface area of a powder is an important physical property, which refers to the total surface area (in square meters) of an oxide powder per unit mass (in grams). The size of the specific surface area is related to factors such as particle size, shape, and porosity of the powder. Generally speaking, the smaller the particles and the higher the porosity, the larger the specific surface...
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The preparation method is one of the key factors affecting the specific surface area of oxide powders. Different preparation methods can lead to differences in the size, shape, and porosity of powder particles, thereby affecting their specific surface area. For example, the sol gel method can prepare oxide powders with high specific surface area, uniform particle size and fine size; The co precipi...
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As one of the most important characterization parameters of nano powder, particle size directly affects the physical and chemical properties of the powder, and then affects the performance of the final product. Therefore, its detection technology is an important tool for industrial production and quality management, and plays an irreplaceable role in improving product quality, reducing production ...
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